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Design Review

Design Review. Team Leader: Thomas C. Null, III Team Members: Andrew Tomlinson, Matthew Gunter Faculty Advisor: Dr. Roger King Department of Electrical and Computer Engineering Mississippi State University. Home Command Center Abstract.

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Design Review

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  1. Design Review Team Leader: Thomas C. Null, III Team Members: Andrew Tomlinson, Matthew Gunter Faculty Advisor: Dr. Roger King Department of Electrical and Computer Engineering Mississippi State University

  2. Home Command Center Abstract The Home Command Center (HCC) will allow the user specify a complex appliance or lighting control schedule from the main module. The user interface will consist of a keypad and a LCD. The HCC will allow the user to key in this schedule at the main module, plug in a control module at the appliance, and then forget about it. The current design uses X-10 technology for the appliance control. The timing schedule will always be accurate and not be compromised by power outages, because the HCC incorporates a WWVB time receiver to acquire and maintain the time. All of the subsystems of the HCC are controlled by a BS2-IC, which keeps the schedule in its internal memory. Future additions to the HCC will include: remote access to timing schedules via dial-up or Internet and infrared or RF appliance control.

  3. Design Review Team Leader: Thomas C. Null, III Team Members: Andrew Tomlinson, Matthew Gunter Faculty Advisor: Dr. Roger King Department of Electrical and Computer Engineering Mississippi State University

  4. Team Home Command Center Tom Null a.k.a. D.K. B.S. Electrical Engineering Leader Andrew Tomlinson a.k.a Fatman B.S. Electrical Engineering Grunt Matt Gunter a.k.a. Catdaddy B.S. Electrical Engineering Grunt Dr. Roger L. King Professor, Mississippi State University Department of Electrical and Computer Engineering Advisor

  5. Existing Scheduling Devices • Full PC $500+ • Existing Command Centers $70+ • Electric Timers $20 • Mechanical Timers $10

  6. HCC Functionality • Primary Function • Time Acquisition Method • User Interface • Appliance Control Method

  7. Test Test Test Test Test Design Requirements X-10 WWVB Keypad LCD • Soft/Hardware Modules • Component Layout • Shipping/Installation • Costs Hardware Integration/Runtime Software Final Product

  8. UltraLink WWVB Receiver X-10 WWVB Keypad LCD • Why Chosen? • WWVB Radio Station • Time acquisition • Receiver Placement • Connections • Software Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  9. X-10 Appliance Control X-10 WWVB Keypad LCD • Why Chosen? • Functionality • Powerline Interface/Appliance Module • Connection • Software Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  10. User Interface X-10 WWVB Keypad LCD LCD • Why Chosen? • Keypad Connection • Scanning Software • LCD Connection • LCD Software Test Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  11. Layout for the Prototype X-10 WWVB Keypad LCD • Five Components to HCC • Internal layout of main module • Housing construction • External Appearance • External Components Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  12. X-10 WWVB Keypad LCD Hardware Integration/Runtime Software Final Product Test Specifications Test Test Test Test • Individual Module Tests • Prototyping • Shipping tests • Installation Test

  13. WWVB Test Results X-10 WWVB Keypad LCD Test Test Test Test Hardware Integration/Runtime Software • Signal Acquisition tests • Quality of Signal • Antenna placement • Average Time 4.4 min Test Final Product

  14. X-10 Test Results X-10 WWVB Keypad LCD • Verify appliance control ability • Tested on variety of rooms and apps • 100% effective in tested house Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  15. User Interface Testing • LCD/Keypad Tests • Software for Interface • Debugging • Optimization • Formatting X-10 WWVB Keypad LCD LCD Test Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  16. Prototyping Results X-10 WWVB Keypad LCD • Component Dimensions 6 x 3.5 x 1.5 inches • Power 0.65 Watts • Current 150mA; 300mA supply • Cost of prototype = $290.00 Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  17. Shipping and Install Results X-10 WWVB Keypad LCD • Before packing: 0.031 cubic feet; 2.8 lbs • Packing material description • After packing: 10x4x8 inch box; 3 lbs Test Test Test Test Hardware Integration/Runtime Software • 5 step process • Instruction Manual for menu setup • Ease of Installation Test Final Product

  18. Final Product X-10 WWVB Keypad LCD • Estimated Price = $85.00 • Small package • Flexible usage • Fire and forget Scheduling Test Test Test Test Hardware Integration/Runtime Software Test Final Product

  19. Future Work • Expanded Capabilities including: • Infrared appliance control • RF appliance control • Software upgrades through serial port to PC • Increased capability through computer connection • Remote access to HCC which is connected to PC over internet or dial-up

  20. Q & A

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